Difference between revisions of "Leymus condensatus"
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|distribution=Alta.;B.C.;Calif. | |distribution=Alta.;B.C.;Calif. | ||
| − | |discussion=<p | + | |discussion=<p>Leymus condensatus is found primarily on dry slopes and in open woodlands of the coastal mountains and offshore islands of California, at elevations of 0-1500 m. Both its large size and paniculate inflorescence tend to make it a distinctive species in the Triticeae. Hybrids between L. condensatus and L. triticoides, known as Leymus xmultiflorus, are relatively common where the parents are sympatric.</p> |
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|basionyms= | |basionyms= | ||
|family=Poaceae | |family=Poaceae | ||
| + | |illustrator=Cindy Roché | ||
|distribution=Alta.;B.C.;Calif. | |distribution=Alta.;B.C.;Calif. | ||
|reference=None | |reference=None | ||
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| − | |source xml=https:// | + | |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/314eb390f968962f596ae85f506b4b3db8683b1b/coarse_grained_fna_xml/V24/V24_519.xml |
|subfamily=Poaceae subfam. Pooideae | |subfamily=Poaceae subfam. Pooideae | ||
|tribe=Poaceae tribe Triticeae | |tribe=Poaceae tribe Triticeae | ||
Revision as of 16:08, 30 October 2019
Plants cespitose, weakly rhizomatous. Culms 115-350 cm tall, 6-10 mm thick, usually several to many together. Leaves exceeded by the inflorescences; auricles absent; ligules 0.7-6 mm on the basal leaves, 4-7.5 mm on the flag leaves; blades 10-28 mm wide, abaxial surfaces glabrous, smooth, adaxial surfaces scabridulous, veins numerous, subequal or unequal. Inflorescences panicles, 17-44 cm long, 20-60 mm wide, lower nodes with 2-6 branches, branches to 8 cm, ascending, with 5-35 spikelets, upper nodes with pedicellate and sessile spikelets; internodes 3.5-10 mm, glabrous. Spikelets 9-25 mm, usually pedicellate, pedicels 0.8-2 mm, with 3-7 florets. Glumes 6-16 mm long, 0.5-2.5 mm wide, narrowly lanceolate, stiff, keeled, the central portion thicker than the margins, glabrous, smooth proximally, scabrous distally, 0-1(3)-veined, veins inconspicuous at midlength, apices tapering almost imperceptibly into an awn, awns subequal to the glume body; lemmas 7-14 mm, usually glabrous, apices acute, sometimes awned, awns to 4 mm; anthers 3.5-7 mm, dehiscent. 2n = 28, 56.
Distribution
Alta., B.C., Calif.
Discussion
Leymus condensatus is found primarily on dry slopes and in open woodlands of the coastal mountains and offshore islands of California, at elevations of 0-1500 m. Both its large size and paniculate inflorescence tend to make it a distinctive species in the Triticeae. Hybrids between L. condensatus and L. triticoides, known as Leymus xmultiflorus, are relatively common where the parents are sympatric.
Selected References
None.